What is the rate of discount on a dvd player having a marked price of $240 but sold for $216 pleas show work

90%

Step-by-step explanation:

240 is the orginal price so

100%=240

and we don't know the percentage of 216 so let's use X so

100%=240

x=216

so 216 over 240 times 100 % and you'll get 90%

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )